Sparkle: "A typographic property associated with many classical, readable typefaces that is related to their typographic contrast." The typeface Bodoni is said to sparkle. (source)

Spot varnish: "Varnish used to hilight [sic] a specific part of the printed sheet." (source)

Thermography: "Method of printing using colorless resin powder that takes on the color of underlying ink. Also called raised printing." Printers can even make the raised part metallic, pearlescent, or glittery!(source)

UV coated paper: "Liquid laminate bonded and cured with ultraviolet light. Environmentally friendly. Comes in gloss or matte finish." (source) This is used to protect the paper. UV coating can apparently provide the glossiest finish of all available coating methods.